> There are few to no business aims that you could possibly fulfill without being inherently interesting to the people you're writing or being in touch with. I

> There are few to no business aims that you could possibly fulfill without being inherently interesting to the people you're writing or being in touch with. If your marketing costs are low - like you only pay for hits or something - then you can afford to brute force the problem. Which is the underlying idea behind spam and door to door. Rather than solving the hard problem of how to identify the people who are likely to be interested in your product.